Table 1.
Characteristics of studies included in the meta-analysis.
| Study (Year) | Location | Study Design | Total Cases (Patients/Control) | Women (%) | Mean Age | Mean PASI | Outcomes | NOS Quality Assessment Score |
|---|---|---|---|---|---|---|---|---|
| Dauden E 2000 [18] | Spain (Europe) | Case-control | 165 (84/81) | NA | NA | NA | Positive urea breath test | 5 |
| Campanati A 2015 [19] | Italy (Europe) | Cohort study | 360 (210/150) | 48.1 | 49.75 | 14.56 ± 4.35 | Positive urea breath test | 9 |
| Ghada F 2010 [20] | Egypt (Africa) | Cross-sectional study | 40 (20/20) | 20 | 26–55 | PASI < 15 = 3 PASI 15-25 = 7 PASI > 25 = 10 |
Positive H.pylori IgG ELISA test | 9 |
| Onsun N 2012 [21] | Turkey (Asia) | Cohort study | 450 (300/150) | 49 | 41.65 | 3.94 ± 4.99 | Positive stool antigen test | 7 |
| Fabrizi G 2001 [22] | Italy (Europe) | Case-control | 49 (20/29) | 44.9 | 5~19 | NA | Positive urea breath test | 6 |
| Zhelezova G 2015 [23] | Bulgaria (Europe) | Cross-sectional study | 49 (25/24) | 32 | 52.2 | NA | Positive H.pylori IgG ELISA test | 7 |
| Qayoom S 2003 [24] | India (Asia) | Cross-sectional study | 100 (50/50) | 44 | 5–60 | NA | Positive H.pylori IgG ELISA test | 8 |
| Türkmen D 2011 [25] | Turkey (Asia) | Cross-sectional study | 113 (56/57) | 42.9 | 38.4 | 5.89 | Positive urea breath test | 8 |
| Azizzadeh M 2014 [26] | Iran (Asia) | Case-control | 122 (61/61) | 54 | 33.3 | 6.6 ± 3.1 | Positive H.pylori IgG ELISA test | 7 |
| Mesquita P 2017 [27] | Brazil (South America) | Cohort study | 147 (126/21) | 57.9 | 50.48 | PASI < 5 = 21 PASI 5-10 = 40 PASI > 10 = 65 |
Positive H.pylori IgG ELISA test | 7 |
| Xunsheng X 2013 [28] | China (Asia) | Case-control | 146 (86/60) | 41 | 16.5–70.5 | 17.42 ± 3.43 | Positive urea breath test | 7 |
NA not available; NOS Newcastle-Ottawa Scale; IgG ELISA IgG enzyme linked immunosorbent.